| 海浪产生磁场的能量分布计算 |
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| 引用本文： | 唐劲飞,龚沈光,王金根.海浪产生磁场的能量分布计算[J].海洋学报,2002,24(3):45-51. |
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| 作者姓名： | 唐劲飞 龚沈光 王金根 |
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| 作者单位： | 海军工程大学兵器工程系, 湖北, 武汉, 430033 |
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| 摘 要： | 结合前人在海浪功率谱研究以及海浪产生磁场两方面的研究,求出了海浪-磁场系统的传递函数,计算了传递函数的峰值、对应的峰值频率,分析了这些指标随高度的变化.根据理论分析,给出了感应磁场总功率的表达式和峰值频率满足的方程,指出海浪感应磁场是一个窄带随机过程.最后选择几种典型的海浪谱,计算了它们感应的磁场功率谱以及总功率、功率谱峰值、峰值频率以及等效噪声带宽.
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| 关 键 词： | 海浪谱 海浪感应的磁场 功率谱 窄带随机过程 |
| 文章编号： | 0253-4193(2002)01-0045-07 |
| 收稿时间： | 2001/6/22 0:00:00 |
| 修稿时间： | 2001年6月22日 |
Computation of energy distribution of the magnetic field induced by ocean waves |
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| TANG Jin-fei,GONG Shen-guang and WANG Jin-gen.Computation of energy distribution of the magnetic field induced by ocean waves[J].Acta Oceanologica Sinica (in Chinese),2002,24(3):45-51. |
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| Authors: | TANG Jin-fei GONG Shen-guang and WANG Jin-gen |
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| Institution: | Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China |
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| Abstract: | With the aid of previous research on ocean wave spectrum and the magnetic field induced by ocean waves, the power transfer function of ocean wave-magnetic field system is determined. The peak value of the transfer function and the corresponding frequency are determined and the changes of these two quantities as a function of height are analyzed. According to the theoretical analysis, the analytical expression of the total magnetic power is determined and the equation that the peak power frequency satisfies is provided. It is pointed out that the induced magnetic field is a narrow band process. Finally,the power spectral density, total power, the maximum of the PSD, maximum frequency and equivalent frequency of induced magnetic field are calculated for some typical wave spectra. |
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| Keywords: | ocean wave spectrum magnetic field induced by ocean waves power spectral density narrow band stochastic processes |
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